Zero-Bandwidth Solana Relay & Offline-First State Channel.

Nexus Pay is an infrastructure primitive designed to facilitate Solana transactions in low-to-zero bandwidth environments. By leveraging local cryptographic caching and delayed-settlement mesh relays, it allows users to execute and sign state changes entirely offline, autonomously settling on-chain the exact millisecond network connectivity is restored.

1. Autonomous Identity Engine: On boot, the agent checks for a local wallet. If none exists, it mathematically generates a new ed25519 keypair and saves it locally (my_agent_keypair.json), removing the need for global Solana CLI dependencies.
2. Auto-Funding Reflex: If the agent detects a 0 lamport balance, it autonomously hooks into the Solana Devnet faucet, requests an airdrop, and waits for block settlement before proceeding.
3. The Relay Buffer: Transactions are constructed and signed locally. Instead of failing on RPC timeouts, signed payloads are serialized and held in a lightweight Rust-based local queue.
4. Asynchronous Settlement: Upon detecting an internet connection, the daemon automatically blasts the signed transaction sequence to the Solana mainnet/devnet.

• Core Engine: Rust (solana-sdk, solana-client)
• Blockchain: Solana (Devnet configuration by default)
• Networking: Local async polling & background execution
• Focus: High-throughput, offline-first accessibility, autonomous agents

Because Nexus Pay V2 features autonomous wallet generation and auto-funding, zero external Solana CLI tools are required to run the local relay daemon.

`bash

git clone https://github.com/YOUR_USERNAME/nexus_pay.git cd nexus_pay

cargo run